I am finding that in some of the windows (search window, library, etc...) the scrolling is backward. Scrolling down is dragging the page down, which actually takes you up the page. That is the opposite of how the regular book scrolling works. Furthermore, the windows 'stick' at the top and bottom. you can't just scroll when the window is all the way up or all the way down. You have to click the arrow and get away from the end for it to start working.